Elevating-truck.



J. WILLER.

ELEVATING TRUCK.

APPLICATION FILED FEB. 21. 1am.

1,286,861 Patented Dc. 3, 1918.

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ELEVATING-TRUCK.

Specification of Letters Patent.

Patented Dec. 3, 1918.

Application filed February 21, 1918. Serial No. 218,555.

To all whom it may concern:

Be it known that I, JACQUES WILLER, a citizen of Russia, and a residentof the city of New York, borough of Brooklyn, in the county of Kings andState of New York, have invented a new and Improved Elevating-Truck, ofwhich the following is a full, clear, and exact description.

This invention relates to elevating devices and particularly to anelevating truck, and has for an object the provision of an improvedconstruction which may be quickly and easily shifted from one positionto the,

other either with or without the load.

Another object of the invention is to provide a truck in which inclinedplanes are used'with means for locking the elevating section in aloweredor raised position.

A still further object of the invention is the provision of an improvedarrangementof elevating trucks wherein the lifting planes may bearranged either on the movable section or stationary section, and lockedin both the elevated or depressed position.

In the accompanying drawing:

Figure 1 is a side view of a truck disclosing an embodiment of theinvention.

Fig. 2 is a top plan view of the truck shown in Fig. 1, certain partsbeing broken away for better illustrating the structure. I

Fig. 3 is a sectional view through Fig. 2 on line 3-3, certain partsbeing broken away.

Fig. 4 is a view similar to Fig. 3, but showing the parts in a depressedposition.

Fi 5 is a view similar to Fig. 3, but showing a slightly modifiedstructure.

Fig. 6 is a transverse sectional, through Fig. 3 on line 6-6. I

Referring to the accompanying drawing by numerals, 1 indicates a base orframe formed from any desired material, preferably U iron as indicatedin Fig. 6, and arranged upon frame 1, and positioned so as to telescopethereover to a certain extent, is a movable frame or section 2 whichacts as an elevating section. Base 1 is provided with supporting members3 at the rear of any desired kind, as for instance Wheels,

' and supporting members 4 at the front of any desired kind, as forinstance ordinary swivel iron casters. These supports may be large orsmall as desired, but so positioned that the top of the wheels will notproject above the frame 1 whereby. said frame, when theparts are in theposition shown in Fig. 4;, may be moved under a body and then theelevating section 2 raised a short distance, and may therefore betransported by the truck to any desired place.

The base 1 is provided at the front with atongue 5 which may be swung tosubstantially any position and to which is secured a chain .6, saidchain in turn being secured at 7 to the lifting section 2 so as to movesaid lifting section forward from the position shown in Fig. 4 to thatshown in Fig. 3. The frame or base 1 is provided with a plurality ofblocks 8, there being. a block 8 for each side of the base at each endand each of said blocks. being provided with a 10 and 11 will roll upthe cams or inclinedportions 9 and will raise the section 2 a pre-'determined distance, and consequently will raise anything placed onsection 2. The tongue 5 must be used for positively pulling the section2 forwardly, but when it is desired to move the section rearwardly anddownwardly to a lowered position, a spring 12acting on the axle 13connected with the traction members 3 and on the transverse bar 14 offrame 2 will automatically pull the frame of section 2 rearwardly anddown wardly. In order to prevent an accidental rearward movement at thewrong time a substantially L-shaped catch 15 is rigidly secured to thetransverse bar 14 and normally presses against the transverse bar 16,

which acts as a removable stop. Bar 16 is rigidly connected with theside arms or levers 17 which are pivotally mounted at 18 and 19, andwhich are normally held in their elevated position as well as transversebar 16 by one or more springs 20 as shown in Fig. 6, and in this way thetransverse bar or stop '16 normally remains in engagement with the catch15. lVhen it is desired to lower the elevating section 2 pressure isplaced on the treadle or step 21 and the stop or transverse bar 16depressed against the action of springs 20 until the catch is releasedwhereupon spring 12 or the weight on ront beveled members or section 2will move the catch 15 rearwardly and downwardly until the catch slidesinto the slot 22 and the catch finally engages the shoulder 23 of theplate 24:. When the device is to be elevated a forward swing of thetongue 5 will cause chain 6 to pull the elevating section 2 forwardlyand as said section moves forwardly the catch 15 will strike the guidingcam 25 and ride over the bar 16 until it engages infront of said bar,whereupon the section will be elevated and locked in an elevatedposition. In forming the device blocks 8 may be made of Wood or othermaterial and also the cam members or inclined portions 9 may be at anydesired angle without departing from the spirit of the invention.

In Fig. 5 will be seen a slightly modified form of. the invention inwhich the wheels 10 and 11 are secured to or mounted 'on the base 1while the elevating section is provided with elevating cams 26 and 27-c'oacting with the rollers 10*and 11. The parts of the section 2 whichcarry the lifting earns 26 and 27v-may be part of the section or may beblocks of wood or other material mounted in said section and securedthereto by bolts or any other desired manner.

What I claim is: I

1. An elevating truck comprising a base, an elevating section, meansarranged between the base and the elevating section for causinganelevation cit-said elevating section when the elevatingsection ismoved in a predetermined direction independently of the base,manuallyoperated means for moving said elevating section so as tocause-the same to "elevate, a catch-connected with saidelevatingsection, and means for lockingsaid catch when the elevatingsection has been elevated, a pair of arms pivotally'm'ounted on saidbase, a cross bar connected with said arms arranged in back of thecatch, and resilient means'for normally holding said cross bar and saidarmsin engagement with said catch.

ers engaging said ways, means connected with the front part of theelevating section for moving the same longitudinally of the baseandthereby causing the elevation thereof as the rollers move up said ways,a catch arranged atthe front o1? the elevating sec- 7 tion, a cross'barinterlocking with the catch for holding the catch and the elevatingsec tion in its elevated position, a pair of arms connected with saidcross bar, said arms being pivotally connected tosaid base, at adistancefrom said cross bar, whereby the cross bar is given asubstantially vertical up and down movement, a spring normally urgingsaid cross bar upwardly, and a stop on each of said arms for limitingthe rearward movement of said catch and the elevating section securedthereto.

3. An elevatino truck comprising a base, a ,pair of inclined ways at thefront of said base and a second pair of inclined ways at the rear ofsaid base, an elevating section mounted on said base provided with abearingr'oller for each of said inclinedways, means at the front of saidelevatingsection for moving the elevating section longitudinally of thebase and thereby causing said rollers to engage said ways and elevatesaid elevating section, a catch connected with the front of saidelevating section, means interlocking said catch for holding the catchand the elevating section in their elevated position,

a dplate having an aperture therein arranged. i

acent said catch, said plate at the lower end presenting a stop torengaging said catch when the same enters said slot for limiting therearward movement of the catch and ele'vatin section whereby theelevating section is loc ed both in an elevated position and a loweredposition.

JACQUES WILLER.

Copies-of this patent may be obtained for five cents each, byaddressingthe Commissioner of Patents.

1 I Washington, D. 0.

